import axios from 'axios'
import { Message } from 'element-ui'
import store from '@/store'
import router from '@/router/index'
// create an axios instance
console.log(process.env.VUE_APP_BASE_API, '-------')
const service = axios.create({
  baseURL: process.env.VUE_APP_BASE_API, // url = base url + request url
  // withCredentials: true, // send cookies when cross-domain requests
  timeout: 5000 // request timeout
})

// request interceptor
service.interceptors.request.use(
  config => {
    // do something before request is sent

    if (store.getters.token) {
      // let each request carry token
      // ['X-Token'] is a custom headers key
      // please modify it according to the actual situation
      // config.headers['X-Token'] = getToken()
      config.headers.Authorization = `Bearer ${store.getters.token}`
    }
    return config
  },
  error => {
    // do something with request error
    console.log(error) // for debug
    return Promise.reject(error)
  }
)

// response interceptor
service.interceptors.response.use(
  /**
   * If you want to get http information such as headers or status
   * Please return  response => response
  */

  /**
   * Determine the request status by custom code
   * Here is just an example
   * You can also judge the status by HTTP Status Code
   */
  response => {
    const res = response.data
    // 判断流式文件 直接返回
    if (response.data instanceof Blob) return response.data
    // 返回的数据进行解构
    const { data, message, success } = response.data
    if (success) { // 成功返回数据
      return data
    } else { // 错误提示
      Message({ type: 'error', message: message })
    }
    // if the custom code is not 20000,  it is judged as an error.
    if (res.code !== 20000) {
      Message({
        message: res.message || 'Error',
        type: 'error',
        duration: 5 * 1000
      })

      // 50008: Illegal token; 50012: Other clients logged in; 50014: Token
      return Promise.reject(new Error(res.message || 'Error'))
    } else {
      return res
    }
  },
  error => {
    console.log('err' + error) // for debug
    if (error.response.status === 401) {
      // 如果token过期  跳转登录页
      router.push('/login')
    }

    return Promise.reject(error)
  }
)

export default service
